DATA SHEET SKY65338-21: 450-470 MHz Transmit/Receive Front-End Module Applications Description x Tetra radio Skyworks SKY65338-21 is a high-efficiency Front-End Module (FEM) that incorporates a transmit and receive path, and an antenna transmit/receive (T/R) switch. x Remote metering x GSM The transmit path consists of a high efficiency Power Amplifier (PA) followed by an harmonic filter for rejection of harmonic frequencies. x WLL transmitters The PA is implemented using Skyworks high reliability Heterojunction Bipolar Transistor (HBT) process and is Class AB biased to provide maximum efficiency with a low spurious output. Features x Transmit output power > +25 dBm x High gain in transmit path: 32 dB A high linearity and high isolation Single-Pole Double-Throw (SPDT) switch is used at the common antenna interface between the transmit and receive paths. The receive path is a low insertion loss through-path with input and output ports internally matched to 50 Ω. x High transmit/receive isolation > 30 dB x Internal RF match and bias circuits x All RF ports internally DC blocked x Single DC supply = +3.6 V x Small footprint, MCM (12-pin, 8 x 8 mm) SMT package (MSL3, 260 qC per JEDEC J-STD-020) Skyworks offers lead (Pb)-free RoHS (Restriction of Hazardous Substances) compliant packaging. Transmit Port Receive Port The device is mounted in a 12-pin, 8 x 8 mm Multi-Chip Module (MCM) Surface-Mounted Technology (SMT) package, which allows for a highly manufacturable low-cost solution. A block diagram of the SKY65338-21 is shown in Figure 1. The device package and pinout for the 12-pin MCM are shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1. SPDT Switch PA Harmonic Filter Antenna Port S1346 Figure 1. SKY65338-21 Block Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201004C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 13, 2009 1 VCC1 PA_EN VCC2 DATA SHEET • SKY65338-21 TRANSMIT/RECEIVE FRONT-END MODULE 12 11 10 V1 GND 2 8 V2 RX_OUT 3 7 ANT 4 5 6 VREF2 9 VREF1 1 VC_BIAS TX_IN S1347 Figure 2. SKY65338-21 Pinout – 12-Pin MCM (Top View) Table 1. SKY65338-21 Signal Descriptions Pin # 1 Name TX_IN Description Pin # Transmit RF input 7 Name ANT Description Antenna 2 GND Ground 8 V2 Switch logic (see Table 1) 3 RX_OUT Receive RF output 9 V1 Switch logic (see Table 1) 4 VC_BIAS +3.6 V DC supply 10 VCC2 +3.6 V DC supply 5 VREF1 +3.6 V DC supply 11 PA_EN PA enable switch (On = 2.5-3.6 V; Off = 0-0.2 V) 6 VREF2 +3.6 V DC supply 12 VCC1 +3.6 V DC supply Technical Description Operational Modes The SKY65338-21 provides input and output amplifier stages, and is internally matched for optimum efficiency. An active bias circuit provides the input and output stages with excellent gain tracking over temperature and voltage variations. The module operates with positive DC voltages, and maintains high efficiency and good linearity. The nominal operating voltage is 3.6 V for maximum power, but the device can be operated at slightly lower voltages for other mobile applications. The module’s receive and transmit modes are configured using the V1 and V2 control signals (pins 9 and 8, respectively). The transmit path provides an harmonic filter and high efficiency PA. The receive path provides a low loss <1 dB bypass between the antenna port and the receive port. The SKY65338-21 is internally matched for optimum linearity and efficiency. The input and output stages are independently supplied using the VCC1 and VCC2 supply lines (pins 12 and 10, respectively). The bias reference voltages for stages 1 and 2 are supplied using common lines VREF1 and VREF2 (pins 5 and 6, respectively). The DC control voltage that sets the bias for stages 1 and 2 is supplied by the VC_BIAS signal, pin 4. The absolute maximum ratings of the SKY65338-21 are provided in Table 2. The recommended operating conditions are specified in Table 3 and electrical specifications are provided in Table 4. Electrical and Mechanical Specifications Typical performance characteristics of the SKY65338-21 are illustrated in Figures 3 through 10. The state of the SKY65338-21 is determiend by the logic provided in Table 5. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 October 13, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201004C DATA SHEET • SKY65338-21 TRANSMIT/RECEIVE FRONT-END MODULE Package and Handling Information additional information, refer to Skyworks Application Note, PCB Design and SMT Assembly/Rework Guidelines for MCM-L Packages, document number 101752. Since the device package is sensitive to moisture absorption, it is baked and vacuum packed before shipping. Instructions on the shipping container label regarding exposure to moisture after the container seal is broken must be followed. Otherwise, problems related to moisture absorption may occur when the part is subjected to high temperature during solder assembly. Care must be taken when attaching this product, whether it is done manually or in a production solder reflow environment. Production quantities of this product are shipped in a standard tape and reel format. For packaging details, refer to the Skyworks Application Note, Tape and Reel, document number 101568. The SKY65338-21 is rated to Moisture Sensitivity Level 3 (MSL3) at 260 qC. It can be used for lead or lead-free soldering. For Table 2. SKY65338-21 Absolute Maximum Ratings (Note 1) Parameter Symbol Minimum Maximum Units Supply voltage VCC 4.4 V Input power PIN +5 dBm Supply current ICC 800 mA Case operating temperature TC –40 +85 qC Storage temperature TST –65 +125 qC Junction temperature TJ 150 qC Note 1: Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other parameters set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device. CAUTION: Although this device is designed to be as robust as possible, Electrostatic Discharge (ESD) can damage this device. This device must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times. Table 3. SKY65338-21 Recommended Operating Conditions Parameter Symbol Minimum Typical Maximum Units Supply voltage VCC1, VCC2, VREF1, VREF2, VC_BIAS 3.0 3.6 4.0 V Case operating temperature TC –40 +85 qC Storage temperature TST –55 +125 qC Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201004C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 13, 2009 3 DATA SHEET • SKY65338-21 TRANSMIT/RECEIVE FRONT-END MODULE Table 4. SKY65338-21 Electrical Specifications (Note 1) (Frequency = 460 MHz, VCC1 = VCC2 = VREF1 = VREF2 = VC_BIAS = 3.6 V, TC = +25 °C, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical 450 Max Units 470 MHz Operating frequency range f Transmit path small signal gain G CW, PIN = –30 dBm 30 32 dB Transmit saturated output power PSAT CW, PIN = –4 dBm +25 +27 dBm Transmit path Noise Figure NF Transmit path harmonics (2nd to 10th) Pf2 to Pf10 CW, POUT = +25 dBm 55 5.5 Power Added Efficiency PAE CW, POUT = +27 dBm 30 Receive path insertion loss RX_LOSS Transmit/receive path isolation ISOL 6.5 36 % 0.6 CW dB dBc 27 1.0 dB 30 dB Input return loss S11 15 19 dB Output return loss S22 9 14 dB Quiescent current IQ No RF 45 55 mA Operating current IOP POUT = +25 dBm 315 350 mA Leakage current ILEAK No RF input, module in standby mode Maximum VSWR for stable operation VSWRMAX CW μA 2 8:1 – Note 1: Performance is guaranteed only under the conditions listed in this Table and is not guaranteed over the full operating or storage temperature ranges. Operation at elevated temperatures may reduce reliability of the device. 40 30 550 28 500 35 26 450 30 24 400 22 350 20 300 18 250 16 200 Output Power, POUT Operating Current, IOP 14 12 10 –20 150 –16 –14 –12 –10 –8 –6 –4 –2 0 20 15 10 5 100 50 –18 25 PAE (%) Operating Current (mA) POUT (dBm) Typical Performance Characteristics (VCC = 3.6 V, Tc = 25 °C, Unless Otherwise Noted) +2 PIN (dBm) Figure 3. Output Power and Operating Current vs Input Power Voltage 0 +10 +12 +14 +16 +18 +20 +22 +24 +28 Figure 4. Power-Added Efficiency vs Output Power Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 +26 POUT (dBm) October 13, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201004C +30 DATA SHEET • SKY65338-21 TRANSMIT/RECEIVE FRONT-END MODULE 34 34 32 32 30 Gain (dB) Gain (dB) 30 28 –40 °C +25 °C +85 °C 26 24 28 2.8 V 3.0 V 3.6 V 4.0 V 26 24 22 22 +10 +12 +14 +16 +18 +20 +22 +24 +26 +28 20 +10 +30 +12 +14 +16 +18 +20 POUT (dBm) +22 +24 +26 +28 +30 POUT (dBm) Figure 5. Gain vs Output Power Over Temperature Figure 6. Gain vs Output Power Over Supply Voltage 600 32.0 500 31.5 –40 °C +25 °C +85 °C 31.0 30.5 Operating Current (mA) Transmit Path Small Signal Gain (dB) 32.5 400 300 200 –40 °C +25 °C +85 °C 100 30.0 0 +10 29.5 450 460 470 +12 +14 +16 +18 +20 +22 +24 +26 +28 +30 POUT (dBm) Frequency (MHz) Figure 8. Operating Current vs Output Power Over Temperature Figure 7. Gain vs Frequency Over Temperature 0.62 100 Receive Path Insertion Loss (dB) Harmonics Suppression (dBc) 95 90 85 80 75 70 65 60 0.60 0.58 –40 °C +25 °C +85 °C 0.56 0.54 0.52 55 0.50 50 F2 F3 F4 F5 F6 F7 Harmonic Order Figure 9. Harmonics F8 F9 F10 450 460 470 Frequency (MHz) Figure 10. Receive Insertion Loss vs Frequency Over Temperature Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201004C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 13, 2009 5 DATA SHEET • SKY65338-21 TRANSMIT/RECEIVE FRONT-END MODULE Table 5. SKY65338-21 SPDT Switch Control Logic Mode V1 Signal (Pin 9) V2 Signal (Pin 8) Transmit 1 0 Receive 0 1 Note: Logic level 0: 0 V to 0.2 V Logic level 1: 2.0 V to 5.0 V Evaluation Board Description The SKY65338-21 Evaluation Board is used to test the performance of the SKY65338-21 FEM. The Evaluation Board schematic diagram is shown in Figure 11. An assembly drawing for the Evaluation Board is shown in Figure 12 and the layer detail is provided in Figure 13. The layer detail physical characteristics are noted in Figure 14. Table 6 provides the Bill of Materials (BOM) list for Evaluation Board components. acts as the heat sink, it must shunt as much heat as possible from the device. Therefore, design the connection to the ground pad to dissipate the maximum wattage produced by the circuit board. Multiple vias to the grounding layer are required. NOTE: A poor connection between the slug and ground increases junction temperature (TJ), which reduces the lifetime of the device. Circuit Design Considerations The following design considerations are general in nature and must be followed regadless of final use or configuration: Package Dimensions The phone board layout footprint for the SKY65338-21 is shown in Figure 15. Package dimensions for the 12-pin MCM are shown in Figure 16, and tape and reel dimensions are provided in Figure 17. 1. Paths to ground should be made as short as possible. 2. The ground pad of the SKY65338-21 has special electrical and thermal grounding requirements. This pad is the main thermal conduit for heat dissipation. Since the circuit board 1 TX_IN 2 GND 50 Ω Transmission Line Switch Logic (V2) 7 8 Voltage Reference 1 6 Voltage Reference 2 5 Switch Logic (V1) 4 PA Enable DC Supply 1 Voltage Bias DC Supply 2 PA Enable 3 9 10 VCC2 J2 SMA 11 PA_EN DC Supply 1 VCC1 12 2 DC Supply 2 9-Header 1 V1 SKY65338 V2 9 8 Switch Logic Switch Logic J4 SMA Voltage Bias VREF2 4 ANT 5 6 7 50 Ω Transmission Line Voltage Reference 2 RX_OUT VREF1 50 Ω Transmission Line Voltage Reference 1 3 VC_BIAS J3 SMA S1348 Figure 11. SKY65338-21 Evaluation Board Schematic Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 October 13, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201004C DATA SHEET • SKY65338-21 TRANSMIT/RECEIVE FRONT-END MODULE S1520 Figure 12. SKY65338-21 Evaluation Board Assembly Drawing Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201004C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 13, 2009 7 DATA SHEET • SKY65338-21 TRANSMIT/RECEIVE FRONT-END MODULE Layer 1: Top – Metal Layer 2: Ground Layer 3: Power Plane Layer 4: Solid Ground Plane S1349 Figure 13. SKY65338-21 Evaluation Board Layer Detail Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 October 13, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201004C DATA SHEET • SKY65338-21 TRANSMIT/RECEIVE FRONT-END MODULE Cross Section Name Thickness (mm) Material Tmask 0.010 Solder Resist L1 0.035 Cu, 1 oz. Dielectric 0.300 Rogers 4003 L2 0.035 Cu, 1 oz Dielectric 0.100 FR4 L3 0.035 Cu, 1 oz Dielectric 0.300 FR4 L4 0.035 Cu, 1 oz Bmask 0.010 Solder resist S1366 Figure 14. Layer Detail Physical Characteristics Table 6. SKY65338-21 Evaluation Board Bill of Materials Component J2, J3, J4 Quantity 3 Part Number 615R54-021 SC1, SC2, SC3, SC4 4 92196A052 Backframe 1 1056-101 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201004C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 13, 2009 9 DATA SHEET • SKY65338-21 TRANSMIT/RECEIVE FRONT-END MODULE 8.685 Stencil aperture 60-80% of module/pkg solder mask area 2X 1.65 12X 0.81 12X 1.043 2X 1.91 CL 8.685 Component Outline CL Stencil Aperture Top View 8.685 6X 0.81 Pin 12 8.785 Pin 12 1.65 Typ 1.65 ∅5.080 Solder 12X 1.143 Mask Opening 11X 1.043 Pin 1 Pin 1 12X 0.91 CL CL 8.685 8.785 1.91 Typ 1.91 Typ 0.25 Thermal Via Array ∅0.3 mm on 1.0 mm pitch. Additional vias in common ground pad will improve thermal performance. NOTE: It is recommended that thermal vias should be filled with 30-35 μm Cu plating. CL Metallization Top View CL Component Outline Solder Mask Opening Top View S1357 All measurements are in millimeters Figure 15. SKY65338-21 Phone Board Layout Footprint Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 10 Component Outline October 13, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201004C 8.385 6x 4.093 DATA SHEET • SKY65338-21 TRANSMIT/RECEIVE FRONT-END MODULE B Pin 1 Indicator C 0.3 Solder Mask Opening 0.15 Metal Pad Pin 1 Indicator (3.4) Pin 12 Top (2.7) 0 8.385 Pin 1 A 4x 1.91 6x 4.093 0.05 A B C 0 0.1 12x SMT Pad 5.08 Solder Mask Opening 4x 1.65 A 1.35 ± 0.1 0.15 A B C 0.15 A B C Side View Top View 0.793 ± 0.1 Bottom View (0.1) Metal Pad Edge 0.81 ± 0.05 Detail A 3x - This rotationo 3x - Rotated 180o 3x - Rotated 90o 3x - Rotated 90 Dimensioning and tolerancing according to ASME Y14.5M-1994. All measurements are in millimeters S1354 Figure 16. SKY65338-21 12-Pin MCM Package Dimensions 12.00 ± 0.10 ∅1.50± 0.10 Pin #1 A 5o Max 8.88 ± 0.10 4.00 ± 0.10 2.00 ± 0.10 B 1.75 ± 0.10 A 7.50 ± 0.10 16.00 +0.30/–0.10 2.14 ± 0.10 B B ∅1.50 ± 0.25 8o Max 8.89 ± 0.10 A Notes: 1. Carrier tape: black conductive poly carbonate or polystyrene. 2. Cover tape material: transparent conductive PSA. 3. Cover tape size: 13.3 mm width. 4. All measurements are in millimeters. S1252 Figure 17. SKY65338-21 12-Pin MCM Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201004C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 13, 2009 11 DATA SHEET • SKY65338-21 TRANSMIT/RECEIVE FRONT-END MODULE Ordering Information Model Name SKY65338-21 450-470 MHz Front-End Module Manufacturing Part Number SKY65338-21 (Pb-free package) Evaluation Kit Part Number TW17-D315-003 Copyright © 2009 Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes. No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in Skyworks Terms and Conditions of Sale. THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A PARTICULAR PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED. SKYWORKS DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO ANY SPECIAL, INDIRECT, INCIDENTAL, STATUTORY, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THE MATERIALS OR INFORMATION, WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury, death, physical or environmental damage. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any damages resulting from such improper use or sale. Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for applications assistance, customer product design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifications or parameters. Skyworks, the Skyworks symbol, and “Breakthrough Simplicity” are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands and names are for identification purposes only, and are the property of their respective owners. Additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 12 October 13, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201004C